Wreck games lesson after teacher finally stops commotion (7)
I believe the answer is:
torpedo
'wreck' is the definition.
(I've seen this before)
'games lesson after teacher finally stops commotion' is the wordplay.
I cannot quite understand how this works, but
'games' could be 'pe' (Physical Education, also called games) and 'pe' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for torpedo that I've seen before include "Destroy" , "Sub's missile" , "Missile fired from underwater submarine" , "Explosive underwater weapon" , "Self-propelled submarine weapon" .)